Hose-coupling.



No. 767,843. PATENTED AUG. 16, 1904. A. J. SMITH.

UNITED STATES Patented August 16, 1904.

PATENT OFFICE.

ONE ONE-HUNDREDTHS TO STEWART M.

MILLER AND ERASTUS R.

HARPER, OF IHITEPINE, COLORADO.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Patent N o. 767,843, dated August16, 1904. Application led April '7, 1904. Serial No. 202,009. (Nomodel.)

To @ZZ whom, 1125 may concern:

Be it known that I, ANDREW J. SMITH, a citizen of theUnited States,residing in Buenavista, in the county of Chaifee and State of 5Colorado, have invented new and useful Improvements in Hose-Couplings,of which the following is a specification.

My invention relates t hose-couplings, and

has for its object to provide certain new and 1o useful improvements inthe construction of the same, as will be hereinafter more definitelypointed out and claimed, reference being had to the accompanyingdrawings, in which- Figure 1 is a plan view of the couplingas-` Isembled. Fig. 2 is a longitudinal section of.

the same. Fig. 3 is a detail perspective viewof the collar carrying thelocking device. Fig. 4 is a similar view of the locking-sleeve. Similarnumerals of reference indicate corresponding parts in the several views.

In the said drawings the reference-numeral 1.

denotes one member of the coupling, which may be termed the femalemember, the same having its interior surface 2 tapered to receive 2 5thetapered exterior surface 3 of the other member, 4, which may betermed the male member. The member 4 is provided on its exterior with aiiange 5 and in front of said iiange with a lug 6. The member 1 isexteriorly 3o screw-threaded at 7 to receive asleeve 8, provided with abayonet-slot 9, adapted to engage the lug 6 when the parts are assembledand by reason of the inclination of said slot to jam the two memberstogether.

3 5 Mounted loosely on member l to the rear of sleeve 8 is a collar 10,carrying a ,springpressed plunger 11, adapted when said collar isbrought in contact with the sleeve 8 to lie in the path of lug 6, saidplunger. having its 4o end beveled at 12-to permit 'said lug 6 to beretracted and passed by saidl plunger when the latter is moving to thelocking position, said plunger preventing any movement of the lug in theopposite direction. The outer end of said plunger is formed into athumb-piece 13 for the purpose of manually retracting said plunger. Tothe rear of said collar 10 is a jam-sleeve 14, interiorly screw-threadedto engage the threaded end 7 of member l.

In practice, with the sleeve 8, collar 10, and jam-sleeve 14 in positionon member 1, the member 4 is inserted thereinto until lug 6 engages withbayonet-slot 9, when by rotating the two members oppositely the lug 6 byits engagement' with the inclined face of said 55 bayonet-slot willforce the two members more firmly together, thus providing a water andair tight connection. In its rotation to position the lug 6 will bycontact with the beveled end 12 of plunger 11 retract said plunger to 60permit the passage of said lug, though when "once past said plunger theconfiguration of Vthe latter will prevent rotation in the oppositedirection unless said plunger is manually retracted.

By forming the collar 10, carrying the the plunger 11, independent ofthe sleeve 8 an accurate adjustment of plunger 1l with respect to thebayonet-slot 9 may be obtained, the jam-sleeve 14 maintaining it in anyad- 70 justed position.

My invention, while adapted Jforvuse in any kind of hose-couplings, isparticularly well adapted for use in connection with compressedairhose-drilling machines and the like, and where the coupling is liable tobe dragged over the ground the locking-plunger 11 is particularly usefulin preventing accidental uncoupling.

An important advantage attained by forming the sleeve 8 removable fromits member 1 is that when the parts become somewhat worn by use saidsleeve may be removed from its member independently and reiitted to thelug 6 by the average workman. 85

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a hose-coupling, the combination with the two members thereofadapted to engage 9C each other, one ofsaid members havinga bayonet-slottherein, and a lug mounted on the other member and adapted to engagesaid bayonet-slot, of means for engaging and retainingl said lug' in itslocked position against any but positive displacement.

2. 1n a hose-coupling, the combination with the two members thereofadapted to engage eachother, one of said members having a bayonet-slottherein, and a lug' mounted on the other member and adapted to engagesaid bayonet-slot, oic an adjustable means for retaining said lug in itslocked position against any but positive displacement.

3. In a hose-coupling, the combination with the two members thereofadapted to engage each other, one of said members havingl a bayonet-slottherein, and a lug' mounted on the other member and adapted to engagesaid bayonet-slot, of a spring-pressed locking-plunger permitting,Imovement o1 said lug' to the looking,` position, but engagingl the sameand preventingI motion in the opposite direction.

4C. 1n a hose-coupling, the combination with the two members thereofadapted to engage each other, one of said members havingI a bayonet-slottherein, and a lug mounted on the other member and adapted to engagesaid bayonet-slot, of a collar adjustable on the slot member, aspring-pressed locking-plunger carried by said collar and permittingImovement olf said lug` to the locking position, but pre/writing motionin the olrniiosite direction, and a jam-sleeve lor retainingl saidcollar and plunger in any adjusted position.

5. In a hose-coupling, the combination of a male and a female memberadapted to engage each other, a lug mounted on one of said members, asleeve mounted on the other member and provided with a bayonet-slot withwhich said lugengages, a collar loosely mounted on said slot member backof said sleeve, a springpressed locking-plunger carried by said collar,lying' in the path ot travel of said lugl in -said slot, and havingl abeveled end adapted to permit the lug to retract it when moving' to thelockingposition, but preventing motion in the opposite direction, andajam-sleeve engaging' said Collar to look it and its plunger in anyadjusted position with respect to the bayo'- net-slot. v

1n testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

ANDREV J. SMl'lH. fitnessesz i CMAS. I. N. SHARPE, G. K. HARTENs'rEIN.

